Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSJEEP2010LIBERTY SPORT, 4WD, PART TIMEREPAIR AND DIAGNOSISRESTRAINTSRESTRAINTS CONTROL SYSTEMSOCCUPANT CLASSIFICATION MODULE (OCM) - ELECTRICAL DIAGNOSTICSDTC TROUBLESHOOTINGU141A-IMPLAUSIBLE DATA RECEIVED FROM OCS SENSOR 2 - RIGHT FRONTDIAGNOSTIC TEST

2010 Jeep Liberty Sport, 4WD, Part Time

Diagnostic Test

2010 Jeep Liberty Sport, 4WD, Part TimeSECTION Diagnostic Test

CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, AND BATTERY FAULTS IN THE OCCUPANT CLASSIFICATION MODULE (OCM)
NOTE: Make sure that the battery is fully charged.
1. Turn the ignition on, then off, and then on again.
2. With the scan tool, read OCM DTCs.
  Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults?
  
  Yes
  - Diagnose and repair the DTCs. See DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing .
  No
  - Go to step 2
VERIFY THAT DTC U141A-IMPLAUSIBLE DATA RECEIVED FROM OCS SENSOR 2 - RIGHT FRONT
1. With the scan tool, read OCM DTCs.
  Does the scan tool display active U141A-IMPLAUSIBLE DATA RECEIVED FROM OCS SENSOR 2 - RIGHT FRONT DTC?
  
  Yes
  - Go to step 3
  No
  - Perform the OCS INTERMITTENT TEST. See DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure .
INSPECT PASSENGER SEAT HARNESS WIRES AND CONNECTORS
WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
1. Using the wiring diagram/schematic as a guide, inspect the Passenger Seat Harness wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.
  Are any of these conditions present?
  
  Yes
  - Replace the Passenger Seat Harness in accordance with the Service Information.
  - Perform the RE-ZERO OCM SEAT WEIGHT SENSORS diagnostic procedure. See DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure .
  No
  - Go to step 4
RE-ZERO OCM SEAT WEIGHT SENSORS
NOTE: Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion.
1. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows.
2. With the scan tool, read OCM DTCs.
  Does the scan tool display any active PASSENGER SEAT WEIGHT SENSOR DTCs?
  
  Yes
  - Go to step 5
  No - Other DTCs Present
  - Diagnose and repair the DTCs. See DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Diagnosis and Testing .
  No Active DTCs Present
  - Perform the OCS VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Occupant Classification (OCM) - Standard Procedure .
VERIFY PASSENGER SEAT RISER, TRACKS AND STRUCTURE
WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
1. Verify that the passenger seat is empty.
  CAUTION: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers.
2. Make sure all Seat Weight Sensor mounting screws are tightened to specification. Refer to Restraints - Specifications .
  WARNING: Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.